2008 ... Bugao Xu · The CrackScope system is an automated pavement crack rating system consisting of a digital line scan camera, laser-line illuminator, and proprietary crack detection and classification software. CrackScope is able to perform real-time pavement inspection with 100% distance coverage at travel velocities from 3 to 70 mph.

2008 ... Bugao Xu [and three others] · Report to describe the improvements made in hardware and software for pavement cracking detections, and the field test results that show the repeatability, accuracy of the data. · Publ. by: University of Texas at Austin. Center for Transportation Research (CTR).

2008 ... RS: Bugao Xu; Researchers: Qingguang Li, Ming Yao and Xun Yao · The proposed project is a follow up of two previously funded projects for automated pavement distress inspection. The goal is to further improve the capabilities of the automated pavement distress rating system (VCrack). The tasks are mainly two fold. One is to

2007 ... Bugao Xu · The artificial lighting system called a light bar is a specially designed lighting device for the automated pavement distress measurement system (VCrack) developed in a previous TxDOT project. The basic function of this device is to provide intense, uniform, and linear illumination for the VCrack's line-scan camera and

2006 ... Y. Huang and Bugao Xu · This paper presents the image-processing algorithm customized for high-speed, real-time inspection of pavement cracking. In the algorithm, a pavement image is divided into grid cells of 8 x 8 pixels, and each cell is classified as a non-crack or crack cell using the grayscale information of the border

2006 ... Bugao Xu · The artificial lighting system is a specially designed lighting device for the automated pavement distress measurement system (VCrack) developed in a previous TxDOT project. The basic function of this device is to provide intense, uniform, and linear illumination for the VCrack's line-scan camera and helps it

2005 ... Bugao Xu · An automated pavement distress rating system was developed under Texas Department of Transportation (TxDOT) Research Project 7-4975 in the past several years. The system now can scan 100 percent of pavement surfaces at any vehicle speed between 5 and 70 miles per hour, detect cracks in real time, and

2003 ... Bugao Xu and Yaxiong Huang · This paper presents a newly developed image-processing algorithm that was customized for high-speed, real-time inspection of pavement cracking. The algorithm was based on the "grid cell" analysis, in which a pavement image is divided into grid cells of 8x8 pixels and each cell is classified as a non-